UA 5471 then GB 397 at O'Hare
Louisville → Chicago → Cincinnati Northern Kentucky
Timetable, Chicago time
15:02UA 5471 from Louisville at the gate
07:00GB 397 to Cincinnati Northern Kentucky leaves the gate
15 h 58 apart on the timetable, overnight
GB 397 leaves 15 h 58 after UA 5471 arrives on the timetable: more than half a day, so not a connection we count.